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For Type-B Cameras
Basic Flash Photography
When the Speedlite 550EX is attached to a Type-B camera such as the EOS-
1N, you can take flash pictures with TTL autoflash as easily as normal
autoexposure (AE) pictures. Flash photography can be fully automatic—all
you do is press the shutter button. Or you can set the desired shutter speed
and aperture and still obtain autoflash exposure.
With the EOS-1N, the flash exposure is controlled by real-time, 3-zone, off-
the-film TTL autoflash metering linked to the active focusing point.
• This section assumes that the Speedlite 550EX is used with the EOS-1N.
• Before proceeding, first turn on the EOS-1N and the 550EX.
• Set the 550EX’s wireless selector to OFF.
• For EOS-1N operations, refer to the EOS-1N Instructions.
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